diff --git a/chart2/source/view/main/OpenglShapeFactory.cxx b/chart2/source/view/main/OpenglShapeFactory.cxx
index 16f21553614d..a340b01df232 100644
--- a/chart2/source/view/main/OpenglShapeFactory.cxx
+++ b/chart2/source/view/main/OpenglShapeFactory.cxx
@@ -449,9 +449,8 @@ uno::Reference< drawing::XShape >
 
 void OpenglShapeFactory::render(uno::Reference< drawing::XShapes > xRootShape)
 {
-    dummy::DummyChart* pChart = dynamic_cast<dummy::DummyChart*>(xRootShape.get());
-    assert(pChart);
-    pChart->render();
+    dummy::DummyChart& rChart = dynamic_cast<dummy::DummyChart&>(*xRootShape.get());
+    rChart.render();
 }
 
 bool OpenglShapeFactory::preRender(OpenGLWindow* pWindow)